document.write( "Question 1194386: Working together, Jenny and Natalie can assemble a desk in 42/13 hours. Working alone Jenny could have done it in 7 hours. How long would it take Natalie working
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Algebra.Com's Answer #826645 by MathTherapy(10553)\"\" \"About 
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\n" ); document.write( "Working together, Jenny and Natalie can assemble a desk in 42/13 hours. Working alone Jenny could have done it in 7 hours. How long would it take Natalie working
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Let time Natalie takes, alone, be N\r\n" );
document.write( "Then Natalie can do \"1%2FN\" of job in 1 hour\r\n" );
document.write( "Since Jenny takes 7 hours alone, Jenny can do \"1%2F7\" of job in 1 hour\r\n" );
document.write( "With both completing the job in \"matrix%281%2C2%2C+42%2F13%2C+hours%29\", we get the following: \r\n" );
document.write( "                                                                42 + 6N = 13N ------ Multiplying by LCD, 42N\r\n" );
document.write( "                                                                     42 = 7N\r\n" );
document.write( "                                       Time Natalie takes, alone, or \"highlight_green%28matrix%281%2C6%2C+N%2C+%22=%22%2C+42%2F7%2C+%22=%22%2C+6%2C+hours%29%29\"
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